blob: aa3dcfd967250623344e4ba4f1de4634d31ace65 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
############################
DHCP Relay trough GRE-Bridge
############################
| Testdate: 2023-12-28
| Version: 1.3.5
| Upgrade Version: 1.5-rolling-202312261220
This simple structure shows how to configure a DHCP Relay over a GRE Bridge
interface.
********
Topology
********
The topology has 3 VyOS routers and one client. Between the DHCP Server and
the DHCP Relay is a GRE tunnel. The `transport` VyOS represent a large
Network.
.. image:: _include/topology.png
:alt: Ansible Example topology image
*************
Configuration
*************
First, we configure the transport network and the Tunnel interface.
Transport:
.. literalinclude:: _include/transport.conf
:language: none
DHCP-Server
.. literalinclude:: _include/dhcp-server.conf
:language: none
:lines: 1-8
DHCP-Relay
.. literalinclude:: _include/dhcp-relay.conf
:language: none
:lines: 1-8
After this, we need the DHCP-Server and Relay configuration.
To get a testable result, we just have one IP in the DHCP range.
Expand it as you need it.
DHCP-Server
.. literalinclude:: _include/dhcp-server.conf
:language: none
:lines: 9-13
DHCP-Relay
.. literalinclude:: _include/dhcp-relay.conf
:language: none
:lines: 9-10
***************
Test the result
***************
Ping the Client from the DHCP Server.
.. code-block:: none
vyos@dhcp-server:~$ ping 192.168.0.30 count 4
PING 192.168.0.30 (192.168.0.30) 56(84) bytes of data.
64 bytes from 192.168.0.30: icmp_seq=1 ttl=63 time=0.960 ms
64 bytes from 192.168.0.30: icmp_seq=2 ttl=63 time=1.03 ms
64 bytes from 192.168.0.30: icmp_seq=3 ttl=63 time=1.18 ms
64 bytes from 192.168.0.30: icmp_seq=4 ttl=63 time=1.20 ms
--- 192.168.0.30 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 7ms
rtt min/avg/max/mdev = 0.960/1.093/1.200/0.100 ms
And show all DHCP Leases
.. code-block:: none
vyos@dhcp-server:~$ show dhcp server leases
IP address Hardware address State Lease start Lease expiration Remaining Pool Hostname
------------ ------------------ ------- ------------------- ------------------- ----------- ---------- ----------
192.168.0.30 00:50:79:66:68:05 active 2023/12/28 12:34:56 2023/12/29 12:34:56 23:59:16 DHCPTun100 VPCS
|
